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Chap......... Copyriglit M 

Shelt.T^5"3 

UNITED STATES OF AMERICA. 






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MECHANICAL GRAPHICS. 



MECHANICAL GRAPHICS. 



AN EDUCATIONAL COURSE ON 



THE THEORY AND PRACTICE OF MECHANICAL DRAWING. 



FREDERICK NEWTON WILLSON, C. E., 

^rofes^or of Dc^criptke Geometry, Stercotomy and Technical Drawing 

i7i the 

John C. Green School nf Science, Princeton, N. J. 



r 







ADVANCE SHEETS OF ILLUSTRATIONS PRINTED FOR THE CLASS OF '94. 






Copyright, 1890. 

BY 

FREDERICK N. WILLSON. 



THE PRINCCTON PRESS 

C. S. ROBINSON &, CO., UNIVERSITY PRINTERS, 

PRINCETON, N. d 



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Railrnad Bridge 
Past CannBctinn 

Upper Clinrd, 



(In drawing llie above the student will make horizmtal, not slanting dividing lines in all fractions. Centre and dimension linos iii conlinuons red linos, 
unless for blue printing, in which case all lines will be black.) 

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THE LEMNISCATE 

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CFHE remaining plates present a large number of examples that will be serviceable to the 
draughtman in the designing of titles for maps and other drawings. They are specimens of 
the type'-founder's art, procured for, though not designed with especial reference to, this work. 



29 



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